Parents Charles Elliott, 18, and Erica Shyrock, 19, each face a charge of endangering the welfare of a minor after the child was rushed to the hospital Sunday.

KARK reports that an emergency room nurse told investigators that the 15-day-old baby girl suffered bite wounds on her arms, fingers, hands and face. Police told the station that the baby had a one-inch wound on her forehead so deep that her skull was visible.

Police spoke with Elliott’s mother, the child’s grandmother, who said he told her a mouse bit the baby and that he was worried about losing custody. Elliott’s mother allegedly told him he should take the girl to a hospital anyway.

Investigators then spoke with Shyrock, who said she woke up to the baby screaming on Sunday morning and found her covered in blood, according to KARK. Authorities said Elliott gave a similar statement, adding that when he went to clean up the blood, he saw rat footprints in the crib.

Shyrock said that she knew rats were in their home, but that she and Elliott hadn’t done anything to solve the problem, police said.

When police searched the home they found a bassinet with bloody rat footprints and a baby’s hat and blanket soaked in blood.

A doctor at Arkansas Children’s Hospital said the baby girl suffered severe skin deconstruction “from rat feeding,” and that it would have taken hours for the injuries to occur, according to KSLA. The doctor concluded that the parents were either incapacitated or not present when the rodent or rodents continuously bit the girl.

Elliott and Shyrock are being held in the Columbia County jail in Arkansas.